arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 0811.2211hep-phhep-thnucl-th
收藏

5D Skyrmions的核子形状因子

Nucleon Form Factors from 5D Skyrmions

Giuliano Panico, Andrea Wulzer

摘要:

强子物理的几个方面都可以用一个简单的五维有效场论很好地描述。重子在这种情况下以“大”(因此是可计算的)5D skyrmions出现。我们扩展和完善现有的分析,这是相当不平凡的,由于数值方法的需要。我们执行这些集体坐标的完全量子化,这是相关的静态可观的计算,如核子形状因子。我们将结果与大N_c QCD的简单期望以及实验数据进行了比较。30%以内的一致性。

英文摘要:

Several aspects of hadron physics are well described by a simple 5D effective field theory. Baryons arise in this scenario as "large" (and therefore calculable) 5D skyrmions. We extend and refine the existing analysis of this 5D soliton, which is fairly non-trivial due to the need of numerical methods. We perform the complete quantization of those collective coordinates which are relevant for computing the static observables like the nucleon form factors. We compare the result with simple expectations about large-N_c QCD and with the experimental data. An agreement within 30% is found.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

↑